深圳居民膳食中硒的测定及其摄入量评估

Determination of Selenium and Assessment of Dietary Selenium Intake in Shenzhen Residents

检测了深圳市居民膳食中硒的含量,并进行统计分析。结果表明,深圳市居民膳食中常见食品的硒含量范围在0~196 mg/100 g,其中,硒含量高低水平为:水产品>肉类>蛋及其制品>鲜(干)食用菌>坚果籽类>豆类及其制品>鲜(干)藻类>谷物>乳制品>谷物制品>蔬菜。深圳市外来劳务工的日均硒摄入量为77.9 mg/d。其中,硒摄入量的主要来源为肉类,硒摄入贡献率分别为46.5%,种类较单一。深圳市常住居民的日均硒摄入量为128.9 mg/d,高于外来劳务工的硒摄入水平,且主要来源丰富,分别是肉类和水产类,硒摄入贡献率分别是42.9%和25.8%。研究结果为深圳市加强劳务工营养膳食指引和科学补硒提供参考。

The investigation and statistical analysis of selenium content in dietary ingredients of residents in Shenzhen showed that the selenium content in common food was in range of 0-196 mg/100 g. Among all kinds of food investigated, the selenium content followed the decreased order of aquatic products〉meat〉eggs and their products 〉 flesh or dry edible fungus 〉 nuts and seeds〉beans and its products〉 fresh or dry algae 〉 grain〉 dairy products〉 grain products〉 vegetables. The daily selenium intake of immigrant contract workers in Shenzhen was 77.9 mg/d. The main contribution of various food groups was meat and the contribution rate was 46.5%. The daily selenium intake of inhabitant in Shenzhen was 128.9 mg/ d, which was higher than that of immigrant contract workers. The contribution of various food groups was meat and aquatic products, whose contribution rates were 42.9% and 25.8%, respectively. The result of this study could be used as a reference for the scientific selenium intake.